If you are under a certain age, you might not know the initialism VTVM. It stands for vacuum tube voltmeter. At first glance, you might just think that was shorthand for “old voltmeter” but, in fact, ...

I have a JBL amp which is working BUT there's something wrong with 2 of the outputs. Front left output just buzzes and front right produces no sound at all. I opened it yesterday and just from looking ...

There’s a mystique among both audiophiles and musicians about vacuum technology, thus having a tube amp still carries a bit of a cachet. New ones can be bought for eye-watering prices and old ones can ...